91±¬ÁÏ

Session Topics

Balsam Gall Midge Update

Presenter: Brett Johnson, Assistant Extension Professor, Sustainable Agriculture and Farm Business Management Educator, 91±¬ÁÏ Cooperative Extension

Balsam gall midge is a major pest affecting balsam and Fraser fir Christmas trees in New England. It reduces quality in both trees and wreath brush by causing gall formation on current-year needles and premature needle drop.

This session will cover:

• Results from a 2024 insecticide efficacy trial in Southern Maine
• Scouting methods and timing for insecticide applications
• An integrated pest management approach to reduce economic losses
• Strategies to conserve beneficial biological control agents

Weed IPM: Non-chemical and Chemical Control Strategies for Perennial Weed Management in Christmas Tree Production

Presenter: Dr. Manjot Sidhu, Assistant Extension Professor of Horticulture and Ornamental Horticulture Specialist, 91±¬ÁÏ Cooperative Extension

Managing perennial weeds in Christmas tree production requires a multi-faceted approach. Perennial grasses and broadleaf weeds compete for nutrients and can reduce tree health and quality.

This session will explore:

• Biology of common perennial weeds in Maine
• Non-chemical control methods such as mulching and clover groundcovers
• Effective chemical control strategies
• Preventing herbicide resistance
• Protecting trees during sensitive growth stages like bud break
• Developing a long-term, climate-appropriate IPM plan

This session is eligible for 2 Maine Board of Pesticides Control recertification credits.

Registration is required to receive the Zoom link.

If the registration fee is a barrier, contact: Billiejo Pendleton, 207.342.5971 or billiejo.pendleton@maine.edu